Android: fix app hanging on the loading screen (Node start only returns when Node exits, wait for whenReady instead), build the native bridge with 16 KB page alignment, show an error instead of an endless spinner

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

mobile/build.js

@@ -37,7 +37,16 @@ function copy(from, to) {
   fs.cpSync(from, to, { recursive: true });
 }
 
+// capacitor-nodejs baut seine Brückenbibliothek mit 4-KB-Seitenausrichtung; neuere Geräte (z. B. Pixel mit
+// 16-KB-Speicherseiten) laden sie dann nicht. Linker-Option einmalig ergänzen.
+function patchPlugin() {
+  const f = path.join(__dirname, 'node_modules', 'capacitor-nodejs', 'android', 'CMakeLists.txt');
+  const s = fs.readFileSync(f, 'utf8');
+  if (!s.includes('max-page-size=16384')) fs.writeFileSync(f, `${s}\ntarget_link_options(native-lib PRIVATE "-Wl,-z,max-page-size=16384")\n`);
+}
+
 function buildWeb() {
+  patchPlugin();
   fs.rmSync(WWW, { recursive: true, force: true });
   copy(path.join(__dirname, 'web'), WWW);
   const nm = path.join(ROOT, 'node_modules', '@xterm');